Hawley adams



(No Model.)

' H. ADAMS.

SMOKE GONSUMING FURNACE. No. 364,745. Patented June 14, 1887.

Fig. 1.

N PETERS, Phulo-Lithognpiwr, Walhirlglom n. C.

* UNITED STATES PATENT OFFICE.

'HAWLEY ADAMS, or new roan, NtY.

SMOKE-CONSUMING FURNACE.

SPECIFICATION forming part: of Letters Patent No. 364,745, dated June 14, 1887.

Application filed March 24, 1887. Serial No. 232,335. (No model.)

To all whom it may concern:

u a steam boiler or generator, of the furnace thereof, and of a certain combination of parts embodying my improvement. Fig. 2 is a horizontal section taken at the plane of the dotted line 00 m, Fig. 1.

Similar letters of reference designate corresponding parts in both figures.

A designates the shell of the steam boiler= or generator. It may be of cylindricform of any approved. type.

B designates the furnace which is used with such steam boiler or generator. The gratebars may be of any desired kind, and'supported by bearers in the usual or any other desirable manner. I have shown supportingbearers b If, affixed one to the inner or rear surface of the front wall, 0, of the furnace,

and the other to the forward surface of the rear Wall, (2", of the furnace.

The frontwall of the furnace is provided with the usual opening and door to afford provision fortheintroduction of fuel. Below the grate-bars is an ash-pit, as usual, and in the front wall there is an opening covered by a door and communicating with the ash-pit.

O designates a wall extending transversely of the steam boiler or generator below the shell A of the same. It, however extends 'up to within a short distance of this shell. It

is located at a considerabbe distance rearwardof the rear wall, 0 of thefurnaee. Between the rear Wall, 0, of the furnace and the wall 0 an inclined wall, D, extends. This inclined wall may advantageously be made of a number of plates of iron corrugated longitudinally. It may be made of tiles, if desirable. It will be so formed'at the forward end as to have a straight or level edge'at the under surface, closing the upwardly-extending corrugations and thereby providing for the passage of air between it and the rear wall, 0 of the furnace. This inclined wall inclines upwardly from the rear of the furnace to the wall 0. It may be supported upon any number of cross-bars d, sustained by the masonry of the steam boiler or generator.

Near the wall 6 the inclined wall D has numerous perforations d. The wall a of the furnace is provided with a passage, or anumber of passages, 6, through which air may pass from that part of the furnace which is below the grate-bars to the space bounded by the side walls of the masonry of thesteam boiler or generator, the rear wall, a, of the furnace, the wall 0, and the inclined wall D. From this space the air so admitted can escape through'the perforations cl The products of combustion will pass from the furnace through that space between the side walls of the masonry which is bounded on the lower side by the inclined wall D and above by the shell A. Owing to the inclination of the wall D, the products of combustion in passing through this space will be deflected close to the shell A, and just before passing over the wall G, which constitutes the bridge-wall of the furnace, has incorporated with it numerous jets of air issuing from the perforation d of said wall D. In thisway the combustion will be perfected and smoke and gas will be consumed. The wall D also forms a serviceable radiating-surface.

I have shown the space which is betweenv clined wall extending between the two walls named, made of longitudinally corrugated bars, and provided with perforations near the rear end, and a passage or passages extending through the rear wall of the furnace, so as to admit of the passage of air through the same,

substantially as specified.

HAWLEY ADAMS. Witnesses:

D. H. DRISOOLL, J. D. GRIswoLD. 

